Modification of Inclusions in ESR Bearing Steel

摘要

Electroslag remelting (ESR) process using consumable electrode deoxidized with Ca- Si and Fe-Si instead of Al, and acid slag (CaF_2-SiO_2-Al_2O_3-CaO) instead of universal slag ANF-6 (CaF_2 70/100 + Al_2O_3 30/100) could change brittle inclusion (alumina) to ductile inclusion (silicate) in remelted steel. Fatigue life of bearing steel could be increased significantly in this way.